Home / 3,977.09-5,489.06-2,298.21

Finding the Fourth Proportional to 3,977.09, 5,489.06 and 2,298.21

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Solution

The fourth proportional to 3,977.09, 5,489.06 and 2,298.21 is: 3,171.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.09 : 5,489.06 = 2,298.21 : x
  2. Step 2: Convert to fraction form
    3,977.09/5,489.06 = 2,298.21/x
  3. Step 3: Cross multiply
    3,977.09x = 5,489.06 × 2,298.21
  4. Step 4: Simplify right side
    3,977.09x = 12,615,001.09
  5. Step 5: Solve for x
    x = 12,615,001.09/3,977.09
  6. Step 6: Final answer
    x = 3,171.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.